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<Title>Icon Pie Chart (1)</Title>
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<p class="heading0">ChartDirector 7.0 (Java Edition)</p>
<p class="heading1">Icon Pie Chart (1)</p>
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<img src="images/iconpie.png" width='400' height='310'>
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This example demonstrates using <a href="cdml.htm">CDML</a> and <a href="paramsub.htm">Parameter Substitution and Formatting</a> to include icons in sector labels. It also demonstrates gradient background color, glass shading effect for the title and rounded corners for the chart frame.<br><br>
<ul><li> The gradient background color is created using <a href="Chart.metalColor.htm">Chart.metalColor</a>, with blue as the base color, and in vertical orientation.<br><br>
<li> The rounded frame is configured using <a href="BaseChart.setRoundedFrame.htm">BaseChart.setRoundedFrame</a>.<br><br>
<li> The glass shading effect of the title is defined using <a href="Chart.glassEffect.htm">Chart.glassEffect</a>, then applied to the title using <a href="Box.setBackground.htm">Box.setBackground</a> of the title <a href="TextBox.htm">TextBox</a> object.<br><br>
<li> The icons file names are added to the chart as an extra field using <a href="BaseChart.addExtraField.htm">BaseChart.addExtraField</a>.<br><br>
<li> The sector label format string is specified using <a href="cdml.htm">CDML</a> and <a href="paramsub.htm">Parameter Substitution and Formatting</a> as:<br><br>
<div class="codeblock"><code>&lt;*block,<wbr>valign=<wbr>absmiddle*&gt;&lt;*img=<wbr>{field0}*&gt; &lt;*block*&gt;{label}&lt;*br*&gt;{percent}%&lt;*/<wbr>*&gt;&lt;*/<wbr>*&gt;</code></div><br>
This means that the sector label is a block, which contains an image followed by another text block. The image file is taken from the extra field. The text block contains two lines showing the sector name and percentage.<br><br>
<li> The format string is applied to the chart using <a href="PieChart.setLabelFormat.htm">PieChart.setLabelFormat</a>.</ul>
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<p class="heading1a">Source Code Listing</p>
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<b>[JSP Version]</b> jspdemo/iconpie.jsp
<div class='codeblock'><code class='pre'>&lt;%@page import="ChartDirector.*, java.util.*" %&gt;
&lt;%
// The data for the pie chart
double[] data = {72, 18, 15, 12};

// The depths for the sectors
double[] depths = {30, 20, 10, 10};

// The labels for the pie chart
String[] labels = {"Sunny", "Cloudy", "Rainy", "Snowy"};

// The icons for the sectors
String[] icons = {"sun.png", "cloud.png", "rain.png", "snowy.png"};

// Create a PieChart object of size 400 x 310 pixels, with a blue (CCCCFF) vertical metal gradient
// background, black border, 1 pixel 3D border effect and rounded corners
PieChart c = new PieChart(400, 310, Chart.metalColor(0xccccff, 0), 0x000000, 1);
c.setRoundedFrame();

//Set search path to current JSP directory for loading icon images
c.setSearchPath(getServletConfig().getServletContext(), request);

// Set the center of the pie at (200, 180) and the radius to 100 pixels
c.setPieSize(200, 180, 100);

// Add a title box using 15pt Times Bold Italic font, on a blue (CCCCFF) background with glass
// effect
c.addTitle("Weather Profile in Wonderland", "Times New Roman Bold Italic", 15).setBackground(
    0xccccff, 0x000000, Chart.glassEffect());

// Set the pie data and the pie labels
c.setData(data, labels);

// Add icons to the chart as a custom field
c.addExtraField(icons);

// Configure the sector labels using CDML to include the icon images
c.setLabelFormat("&lt;*block,valign=absmiddle*&gt;&lt;*img={field0}*&gt; &lt;*block*&gt;{label}\n{percent}%&lt;*/*&gt;&lt;*/*&gt;"
    );

// Draw the pie in 3D with variable 3D depths
c.set3D2(depths);

// Set the start angle to 225 degrees may improve layout when the depths of the sector are sorted in
// descending order, because it ensures the tallest sector is at the back.
c.setStartAngle(225);

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "", "title='{label}: {value} days ({percent}%)'"));
%&gt;
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Icon Pie Chart (1)&lt;/title&gt;
    &lt;!-- Include ChartDirector Javascript Library to support chart interactions --&gt;
    &lt;script type="text/javascript" src="cdjcv.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body style="margin:5px 0px 0px 5px"&gt;
    &lt;div style="font:bold 18pt verdana;"&gt;
        Icon Pie Chart (1)
    &lt;/div&gt;
    &lt;hr style="border:solid 1px #000080; background:#000080" /&gt;
    &lt;div style="font:10pt verdana; margin-bottom:1.5em"&gt;
        &lt;a href="viewsource.jsp?file=&lt;%=request.getServletPath()%&gt;"&gt;View Source Code&lt;/a&gt;
    &lt;/div&gt;
    &lt;!-- ****** Here is the chart image ****** --&gt;
    &lt;%= viewer.renderHTML(response) %&gt;
&lt;/body&gt;
&lt;/html&gt;</code></div>
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